Better Call Claude

Name: Better Call Claude
Author: sns45

by sns45version 3.1.3i★ –iRuns on your computer

Registry nameio.github.sns45/better-call-claude

Install

Overview

Description from the maker (original English)

Voice Calls, SMS, and WhatsApp for Claude Code with cross-channel context sharing.

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

User voiceiNo reviews yetReviews open together with accounts in a later step
Our basic checksi1 of 1 passedChecked from public information; code not scanned yet
UsageiVery new↓ 61/wk · ★ –

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

Connection: Runs on your computer
Transport: stdio
Category: Chat & email
You need to fill in: BETTERCALLCLAUDE_PHONE_PROVIDER, BETTERCALLCLAUDE_PHONE_NUMBER, BETTERCALLCLAUDE_PHONE_ACCOUNT_SID, BETTERCALLCLAUDE_PHONE_AUTH_TOKEN, BETTERCALLCLAUDE_USER_PHONE_NUMBER, BETTERCALLCLAUDE_OPENAI_API_KEY

Install

Pick the AI app you use, then copy the settings.

Before you install

Basic checks: 1 of 1 passed
Runs on your computer with your user’s permissions (files, network, apps).
You fill in yourself: BETTERCALLCLAUDE_PHONE_PROVIDER, BETTERCALLCLAUDE_PHONE_NUMBER, BETTERCALLCLAUDE_PHONE_ACCOUNT_SID, BETTERCALLCLAUDE_PHONE_AUTH_TOKEN, BETTERCALLCLAUDE_USER_PHONE_NUMBER, BETTERCALLCLAUDE_OPENAI_API_KEY, BETTERCALLCLAUDE_WHATSAPP_NUMBER, BETTERCALLCLAUDE_PORT, TAILSCALE_HOSTNAME, BETTERCALLCLAUDE_WHATSAPP_PROVIDER, BETTERCALLCLAUDE_BAILEYS_AUTH_DIR, BETTERCALLCLAUDE_WHATSAPP_CHAT_HISTORY_SIZE

Values marked secret are keys to your account. Never share them or paste them into a chat.

You need

npmNode.js installed (for the npx command)

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

Pick your app above. We remember it, so next time the button says “Install in …”.

Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json

{
  "mcpServers": {
    "better-call-claude": {
      "command": "npx",
      "args": [
        "-y",
        "better-call-claude"
      ],
      "env": {
        "BETTERCALLCLAUDE_PHONE_PROVIDER": "your-value",
        "BETTERCALLCLAUDE_PHONE_NUMBER": "your-value",
        "BETTERCALLCLAUDE_PHONE_ACCOUNT_SID": "your-value",
        "BETTERCALLCLAUDE_PHONE_AUTH_TOKEN": "your-value",
        "BETTERCALLCLAUDE_USER_PHONE_NUMBER": "your-value",
        "BETTERCALLCLAUDE_OPENAI_API_KEY": "your-value",
        "BETTERCALLCLAUDE_WHATSAPP_NUMBER": "your-value",
        "BETTERCALLCLAUDE_PORT": "your-value",
        "TAILSCALE_HOSTNAME": "your-value",
        "BETTERCALLCLAUDE_WHATSAPP_PROVIDER": "your-value",
        "BETTERCALLCLAUDE_BAILEYS_AUTH_DIR": "your-value",
        "BETTERCALLCLAUDE_WHATSAPP_CHAT_HISTORY_SIZE": "your-value"
      }
    }
  }
}

Run this in your terminal

claude mcp add better-call-claude --env BETTERCALLCLAUDE_PHONE_PROVIDER=your-value --env BETTERCALLCLAUDE_PHONE_NUMBER=your-value --env BETTERCALLCLAUDE_PHONE_ACCOUNT_SID=your-value --env BETTERCALLCLAUDE_PHONE_AUTH_TOKEN=your-value --env BETTERCALLCLAUDE_USER_PHONE_NUMBER=your-value --env BETTERCALLCLAUDE_OPENAI_API_KEY=your-value --env BETTERCALLCLAUDE_WHATSAPP_NUMBER=your-value --env BETTERCALLCLAUDE_PORT=your-value --env TAILSCALE_HOSTNAME=your-value --env BETTERCALLCLAUDE_WHATSAPP_PROVIDER=your-value --env BETTERCALLCLAUDE_BAILEYS_AUTH_DIR=your-value --env BETTERCALLCLAUDE_WHATSAPP_CHAT_HISTORY_SIZE=your-value -- npx -y better-call-claude

Fill in the empty values before running it.

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "better-call-claude": {
      "command": "npx",
      "args": [
        "-y",
        "better-call-claude"
      ],
      "env": {
        "BETTERCALLCLAUDE_PHONE_PROVIDER": "your-value",
        "BETTERCALLCLAUDE_PHONE_NUMBER": "your-value",
        "BETTERCALLCLAUDE_PHONE_ACCOUNT_SID": "your-value",
        "BETTERCALLCLAUDE_PHONE_AUTH_TOKEN": "your-value",
        "BETTERCALLCLAUDE_USER_PHONE_NUMBER": "your-value",
        "BETTERCALLCLAUDE_OPENAI_API_KEY": "your-value",
        "BETTERCALLCLAUDE_WHATSAPP_NUMBER": "your-value",
        "BETTERCALLCLAUDE_PORT": "your-value",
        "TAILSCALE_HOSTNAME": "your-value",
        "BETTERCALLCLAUDE_WHATSAPP_PROVIDER": "your-value",
        "BETTERCALLCLAUDE_BAILEYS_AUTH_DIR": "your-value",
        "BETTERCALLCLAUDE_WHATSAPP_CHAT_HISTORY_SIZE": "your-value"
      }
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "better-call-claude": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "better-call-claude"
      ],
      "env": {
        "BETTERCALLCLAUDE_PHONE_PROVIDER": "your-value",
        "BETTERCALLCLAUDE_PHONE_NUMBER": "your-value",
        "BETTERCALLCLAUDE_PHONE_ACCOUNT_SID": "your-value",
        "BETTERCALLCLAUDE_PHONE_AUTH_TOKEN": "your-value",
        "BETTERCALLCLAUDE_USER_PHONE_NUMBER": "your-value",
        "BETTERCALLCLAUDE_OPENAI_API_KEY": "your-value",
        "BETTERCALLCLAUDE_WHATSAPP_NUMBER": "your-value",
        "BETTERCALLCLAUDE_PORT": "your-value",
        "TAILSCALE_HOSTNAME": "your-value",
        "BETTERCALLCLAUDE_WHATSAPP_PROVIDER": "your-value",
        "BETTERCALLCLAUDE_BAILEYS_AUTH_DIR": "your-value",
        "BETTERCALLCLAUDE_WHATSAPP_CHAT_HISTORY_SIZE": "your-value"
      }
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

This one runs on your computer, and ChatGPT can only connect to servers on the internet. Pick another app.

Your choice stays on this device in a cookie; no account needed.

Values you fill in

BETTERCALLCLAUDE_PHONE_PROVIDER required env
Phone provider: 'twilio' or 'telnyx'
BETTERCALLCLAUDE_PHONE_NUMBER required env
Your phone number in E.164 format
BETTERCALLCLAUDE_PHONE_ACCOUNT_SID secret required env
Twilio Account SID or Telnyx API Key
BETTERCALLCLAUDE_PHONE_AUTH_TOKEN secret required env
Twilio Auth Token or Telnyx API Secret
BETTERCALLCLAUDE_USER_PHONE_NUMBER required env
Your personal phone number in E.164 format (for outbound calls/SMS)
BETTERCALLCLAUDE_OPENAI_API_KEY secret required env
OpenAI API key for speech-to-text (Whisper) and text-to-speech
BETTERCALLCLAUDE_WHATSAPP_NUMBER env
WhatsApp number if different from phone number (e.g., Twilio Sandbox)
BETTERCALLCLAUDE_PORT env
Local HTTP server port
TAILSCALE_HOSTNAME env
Override Tailscale hostname for webhook URL
BETTERCALLCLAUDE_WHATSAPP_PROVIDER env
WhatsApp provider: set to 'baileys' for free WhatsApp via WebSocket (no Twilio needed)
BETTERCALLCLAUDE_BAILEYS_AUTH_DIR env
Path to Baileys auth state directory (default: data/baileys-auth)
BETTERCALLCLAUDE_WHATSAPP_CHAT_HISTORY_SIZE env
Max WhatsApp chat history messages to retain (default: 50)

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

Runs on your computer; the tool list appears in your AI app after you install it.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 8, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account sns45, which owns the repo
… Not checked yet
Still maintained
We have not read this repo from GitHub yet
… Not checked yet
Has a licence
We have not read this repo from GitHub yet
– Not applicable
Endpoint responds
This one runs on your computer; there is no internet endpoint
– Not applicable
Sign-in with OAuth
Runs on your computer and uses local settings instead
… Not checked yet
No hidden instructions in tool descriptions
Runs on your computer; we can only read tool lists from internet endpoints

Compared with others in Chat & emaili

More stars than 0% of the other 1861 servers in this category
Published to the registry more recently than 19% of the other 1861 servers in this category
Basic checks equal to or better than 100% of the other 1861 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is Better Call Claude safe?

It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

You need to fill in: BETTERCALLCLAUDE_PHONE_PROVIDER, BETTERCALLCLAUDE_PHONE_NUMBER, BETTERCALLCLAUDE_PHONE_ACCOUNT_SID, BETTERCALLCLAUDE_PHONE_AUTH_TOKEN, BETTERCALLCLAUDE_USER_PHONE_NUMBER, BETTERCALLCLAUDE_OPENAI_API_KEY

Does it run on my computer or in the cloud?

It runs on your computer. Your AI app starts it when needed, and data does not pass through the maker’s servers (unless it calls an online service itself).

Is it still maintained?

The GitHub repo last changed –, and the latest version (3.1.3) reached the registry 4 months ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Node.js on your computer.

What can I use instead?

In the same category: Vexa, emailmd, MCP WhatsApp Cloud

Alternatives

Servers in the same category from other makers, sorted by stars.

Reading a card:↓ Downloads per weeki★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

Vexa

Meeting bot and transcripts for Google Meet, Teams and Zoom. Live or after, speakers labelled.

by Vexa-aiWidely used★ 2.9KUpdated 2 months ago

Runs in the cloud✓ vexa.ai

Install

emailmd

Render markdown into email-safe HTML, lint drafts for deliverability problems, and preview emails.

by anypostWidely used↓ 5.3K/wk★ 1.4KUpdated 33 days ago

Computer or cloud✓ emailmd.dev

Install

MCP WhatsApp Cloud

MCP server for WhatsApp Cloud API (Meta) — messages, media, and templates via Graph API

by codesparEarly↓ 63/wk★ 277Updated 5 months ago

Runs on your computer

Install

README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

Better Call Claude

Bi-directional communication for Claude Code via Voice Calls, SMS, and WhatsApp.

Call Claude from your phone to start tasks, and receive callbacks when Claude needs input or wants to share status.

📞 "Hey Claude, refactor the auth module and call me when you're done or need a decision."

*[20 minutes later, phone rings]*

🤖 "I've finished the refactor but found a security issue. Should I fix it now or create a ticket?"

💬 *Or via SMS/WhatsApp:*

You: "Claude, how's the deployment going?"

Claude: "Deployment complete. 3 services updated, all health checks passing."

Features

📱 Inbound calls - Call Claude Code from your phone to start tasks
📲 Outbound calls - Claude calls you when done, stuck, or needs decisions
💬 SMS messaging - Send and receive text messages with Claude
📱 WhatsApp - Full WhatsApp Business integration
🔄 Cross-channel context - Start on voice, continue on WhatsApp seamlessly
🔗 Persistent sessions - Claude stays alive listening for WhatsApp messages
🔒 Secure transport - Tailscale Funnel with guided auto-setup
🗣️ Natural conversations - Multi-turn interactions across all channels
🔧 Tool composable - Claude can use other tools while communicating
⚡ Auto-webhook updates - Twilio webhooks auto-update when URL changes
🆓 Free WhatsApp via Baileys - Personal WhatsApp with zero API costs, no business verification
⌚ Works anywhere - Phone, smartwatch, or any device

### ⚠️ Testing Status

| Channel | Provider | Status |

|---------|----------|--------|

| Voice | Twilio | ✅ Tested & Working |

| WhatsApp | Twilio Sandbox | ✅ Tested & Working |

| SMS | Twilio | ⏳ Pending A2P 10DLC verification |

| Voice | Telnyx | 🔬 Not yet tested |

| SMS | Telnyx | 🔬 Not yet tested |

| WhatsApp | Telnyx | 🔬 Not yet tested |

| WhatsApp | Baileys (free) | 🔬 New - testing welcome |

*Contributions welcome for testing other provider/channel combinations!*

Quick Start

1. Choose Your Setup

Setup	What You Get	Cost	Accounts Needed
Baileys only	WhatsApp messaging	Free	None
Twilio/Telnyx	Voice + SMS + WhatsApp	~$1/mo + usage	Twilio/Telnyx + OpenAI
Hybrid	Voice + SMS (Twilio) + WhatsApp (Baileys)	~$1/mo + voice usage	Twilio/Telnyx + OpenAI

Just want WhatsApp? Skip to Option C: Baileys — no accounts, no API keys, completely free.

2. Set Up Phone Provider

Option A: Telnyx (Recommended - 50% cheaper)

Create account at portal.telnyx.com and verify identity
Buy a phone number (~$1/month)
Create a Voice API application:

Set webhook URL to your tunnel URL + /webhook/telnyx/inbound
Set API version to v2

Enable SMS on your phone number:

Go to Messaging and create a Messaging Profile
Assign your phone number to the profile
Set SMS webhook URL to your tunnel URL + /webhook/telnyx/sms

Enable WhatsApp (optional):

Go to WhatsApp in portal
Complete WhatsApp Business verification
Set webhook URL to your tunnel URL + /webhook/telnyx/whatsapp

Verify your phone number for outbound calls
Get your Connection ID (or Messaging Profile ID) and API Key

Option B: Twilio

Create account at twilio.com/console
Buy a phone number
Configure webhooks for your number:

Voice webhook: your tunnel URL + /webhook/twilio/inbound
SMS webhook: your tunnel URL + /webhook/twilio/sms

Enable WhatsApp (optional):

Go to WhatsApp Senders
Complete WhatsApp Business setup
Set webhook URL to your tunnel URL + /webhook/twilio/whatsapp

Get your Account SID and Auth Token

Option C: Baileys (Free WhatsApp — no API provider needed)

Baileys connects directly to WhatsApp's Web protocol via WebSocket. It uses your personal WhatsApp account — no business verification, no API costs, no Twilio/Telnyx required.

How it works: Same as WhatsApp Web — you link a device by scanning a QR code.

Step 1: Clone and install

git clone https://github.com/sns45/better-call-claude

cd better-call-claude bun install

Step 2: Pair your WhatsApp

bun run baileys:pair

A QR code will appear in your terminal
Open WhatsApp on your phone > Settings > Linked Devices > Link a Device
Scan the QR code
Wait for "Paired successfully!" message

Your session is saved in data/baileys-auth/ — you won't need to scan again.

Step 3: Add to Claude Code (~/.claude.json or ~/.claude/settings.json):

"mcpServers": { "better-call-claude": { "command": "bun", "args": ["run", "/path/to/better-call-claude/src/index.ts"], "env": { "BETTERCALLCLAUDE_WHATSAPP_PROVIDER": "baileys", "BETTERCALLCLAUDE_USER_PHONE_NUMBER": "+1234567890" } } } }

That's it! No Tailscale, no Twilio, no OpenAI keys needed.

Step 4: Restart Claude Code and test

Send a WhatsApp message to yourself (or have someone message you) — Baileys receives it and spawns a Claude task. Or ask Claude to send you a WhatsApp:

"Send me a WhatsApp saying hello"

Option D: Hybrid (Twilio/Telnyx voice + Baileys WhatsApp)

Get the best of both worlds: Twilio/Telnyx handles voice calls and SMS, Baileys handles WhatsApp for free.

Set up Twilio or Telnyx (Options A/B above)
Run bun run baileys:pair to pair your WhatsApp
Add to your MCP config:

"env": { "BETTERCALLCLAUDE_PHONE_PROVIDER": "twilio", "BETTERCALLCLAUDE_WHATSAPP_PROVIDER": "baileys", "BETTERCALLCLAUDE_PHONE_ACCOUNT_SID": "your-account-sid", "BETTERCALLCLAUDE_PHONE_AUTH_TOKEN": "your-auth-token", "BETTERCALLCLAUDE_PHONE_NUMBER": "+15551234567", "BETTERCALLCLAUDE_USER_PHONE_NUMBER": "+15559876543", "BETTERCALLCLAUDE_OPENAI_API_KEY": "sk-..." } }

Voice calls and SMS go through Twilio. WhatsApp goes through Baileys (free).

3. Set Up Tailscale Funnel (for webhooks)

Skip this step if you're using Baileys-only mode (Option C). Baileys doesn't need webhooks.

Tailscale Funnel provides free, stable public URLs for receiving webhooks from your phone provider.

Why Tailscale? Free unlimited tunnels, stable URLs (no random subdomains), enterprise-grade security.

Path: Better Call Claude uses /bcc path (e.g., https://your-hostname.ts.net/bcc) to avoid conflicts with other services.

First-time setup (automated):

When you first start the MCP server, it will guide you through setup:

Install Tailscale (if not installed):

   # macOS

brew install tailscale

Linux

curl -fsSL https://tailscale.com/install.sh | sh

Authenticate - The server will auto-run tailscale up and open your browser

Enable Funnel - Visit the URL shown in the terminal to enable Funnel on your tailnet (one-time admin step)

That's it! The server handles the rest automatically.

4. Install Better Call Claude

# Quick start with bunx (recommended)

bunx better-call-claude

Or install globally

bun install -g better-call-claude better-call-claude

5. Add to Claude Code

Add to ~/.claude/settings.json:

"mcpServers": { "better-call-claude": { "command": "bunx", "args": ["better-call-claude"], "env": { "BETTERCALLCLAUDE_PHONE_PROVIDER": "telnyx", "BETTERCALLCLAUDE_PHONE_ACCOUNT_SID": "your-connection-id", "BETTERCALLCLAUDE_PHONE_AUTH_TOKEN": "your-api-key", "BETTERCALLCLAUDE_PHONE_NUMBER": "+15551234567", "BETTERCALLCLAUDE_USER_PHONE_NUMBER": "+15559876543", "BETTERCALLCLAUDE_OPENAI_API_KEY": "sk-..." } } } }

Note: Tailscale setup is automatic on first run. The server will guide you through installation and authentication if needed.

Restart Claude Code. Done!

Environment Variables

Required Variables

Variable	Description
`BETTERCALLCLAUDE_PHONE_PROVIDER`	`telnyx` or `twilio`
`BETTERCALLCLAUDE_PHONE_ACCOUNT_SID`	Provider account/connection ID
`BETTERCALLCLAUDE_PHONE_AUTH_TOKEN`	Provider API key/auth token
`BETTERCALLCLAUDE_PHONE_NUMBER`	Your Telnyx/Twilio phone number (E.164)
`BETTERCALLCLAUDE_WHATSAPP_NUMBER`	WhatsApp number if different (e.g., Twilio Sandbox)
`BETTERCALLCLAUDE_USER_PHONE_NUMBER`	Your personal phone number
`BETTERCALLCLAUDE_OPENAI_API_KEY`	OpenAI API key for TTS/STT

Baileys (Free WhatsApp)

Variable	Default	Description
`BETTERCALLCLAUDE_WHATSAPP_PROVIDER`	(unset)	Set to `baileys` to enable free WhatsApp
`BETTERCALLCLAUDE_BAILEYS_AUTH_DIR`	`data/baileys-auth`	Session credential directory

Baileys-only mode: When WHATSAPP_PROVIDER=baileys and no Twilio/Telnyx credentials are set, only USER_PHONE_NUMBER is required. No Tailscale, no OpenAI key needed.

Tailscale (Optional)

Variable	Default	Description
`TAILSCALE_HOSTNAME`	auto-detected	Override Tailscale hostname

Optional Variables

Variable	Default	Description
`BETTERCALLCLAUDE_TTS_VOICE`	`onyx`	OpenAI voice (alloy, echo, fable, onyx, nova, shimmer)
`BETTERCALLCLAUDE_PORT`	`3333`	Local HTTP server port
`BETTERCALLCLAUDE_TRANSCRIPT_TIMEOUT_MS`	`180000`	Speech timeout (3 min)
`BETTERCALLCLAUDE_STT_SILENCE_DURATION_MS`	`800`	End-of-speech detection

Usage

Voice Calls

You → Claude (Inbound Calls)

Call your Telnyx/Twilio phone number from your personal phone:

📱 "Hey Claude, I need you to write unit tests for the payment module. Call me when you're done."

Claude will acknowledge and start working. When done, it calls you back.

Claude → You (Outbound Calls)

Claude can initiate calls when it needs your input:

🤖 "I found 3 different approaches for the caching layer. Want me to explain them so you can choose?"

Voice Commands During Calls

"Hang up" or "Goodbye" - End the call
"Hold on" - Claude waits for you to continue
"Go ahead" - Claude continues with the task
"Cancel that" - Abort current action

SMS Messaging

You → Claude (Inbound SMS)

Text your Telnyx/Twilio number:

💬 "Hey Claude, what's the status of the deployment?"

Claude will respond via SMS:

🤖 "Deployment is 80% complete. Running integration tests now. ETA: 5 minutes."

Claude → You (Outbound SMS)

Claude can send you text updates:

🤖 "Build failed on line 42 of auth.ts. Reply with 'fix' to auto-fix or 'skip' to continue."

You → Claude (Inbound WhatsApp)

Send a WhatsApp message to your business number:

💬 "Show me the error logs from the last hour"

Claude responds in WhatsApp:

🤖 "Found 3 errors:\n1. Co

Only the beginning is shown; read the rest in the repo

Better Call Claude

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

Values you fill in

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Compared with others in Chat & emaili

Common questions

Alternatives

Vexa

emailmd

MCP WhatsApp Cloud

README from the maker

Better Call Claude

Features

Quick Start

1. Choose Your Setup

2. Set Up Phone Provider

3. Set Up Tailscale Funnel (for webhooks)

Linux

4. Install Better Call Claude

Or install globally

5. Add to Claude Code

Environment Variables

Required Variables

Baileys (Free WhatsApp)

Tailscale (Optional)

Optional Variables

Usage

Voice Calls

You → Claude (Inbound Calls)

Claude → You (Outbound Calls)

Voice Commands During Calls

SMS Messaging

You → Claude (Inbound SMS)

Claude → You (Outbound SMS)

WhatsApp

You → Claude (Inbound WhatsApp)